Math Chapter Wise

EnglishOAVS TGT 2018

Q121.If α and β are the roots of the equation 3x2 + 4x – 3 = 0, then the values of α + β and αβ are respectively:

A4 and1 3 B4 and 1 3 C4 and1 3 D4 and 1 3

Show answer

EnglishOAVS TGT 2018

Q122.To add or subtract a positive number from both sides of any inequality without any change in the equality sign is called the:

AAdditive Property of Inequality BDistributive Property of Inequality CTransitive Property of Inequality DMultiplicative Property of Inequality

Show answer

EnglishOAVS TGT 2018

Q123.For a, b ∈ R; a ≠ 0, b ≠ 0, a > b imply:

Aa = b Ba < b C1 1/a b D1 1/a b

Show answer

EnglishOAVS TGT 2018

Q124.If in a general quadratic equation, b = 0, then it is called a:

AComplex equation BSimple equation CPure Quadratic equation DLinear equation

Show answer

EnglishOAVS TGT 2018

Q125.When x y x y,x,y R,if:

Axy < 0 Bxy ≥ 0 Cx, y ≤ 0 Dxy > 0

Show answer

EnglishOAVS TGT 2018

Q126.If a specific x = 2 is substituted variable x in the polynomial such that the value is 0, then x = 2 is said to be:

AZero Coefficient BZero of the Polynomial CRational Number DConjugate Surd

Show answer

EnglishOAVS TGT 2018

Q127.The expected value or______ of a random variable is the centre of its distribution.

AMean BMode CMedian DBayesian inference

Show answer

EnglishOAVS TGT 2018

Q128.If two variables, x and y, are involved in a linear equation, then the equation is:

Aab + xy = c Bac + xy = b Cax + by = c Dxy + bc = a

Show answer

EnglishOAVS TGT 2017

Q129.Find the values of λ so that the equations x2 – λx – 21= 0 and x2 – 3λx + 35 = 0 may have one common root.

A4, 3 B4, –2 C3, –2 D4, –4

Show answer

EnglishOAVS TGT 2017

Q130.The degree of the polynomial obtained by the product (x2 + 4x + 3) (2x2 – 9x + 7) is:

A1 B4 C3 D2

Show answer

EnglishOAVS TGT 2017

Q131.Find the discriminant of 6x2 + 5x +7 = 0.

A143 B–143 C–137 D137

Show answer

EnglishOAVS TGT 2017

Q132.x < 2 equivalent to:

Ax < 2 Bx > 2 Cx ≤ 2 D–2 < x < 2

Show answer

EnglishOAVS TGT 2017

Q133.If x – b is a factor of F(x), then which of the following is TRUE?

AF(b) = 0 BF(0) = b CF(b) = 1 DF(1) = b

Show answer

EnglishOAVS TGT 2017

Q134.3x2 + 11x + k = 0 is an equation with reciprocal roots, what is the value of k?

A1 B2 C4 D3

Show answer

EnglishOAVS TGT 2017

Q135.If α, β are the roots of the equation 4x2 – 5x+3=0, then find α2 β + αβ2?

A15/16 B–15/16 C–13/16 D13/16

Show answer

EnglishOAVS TGT 2017

Q136.What are the roots of equation x3 – 5x2 –2x + 24 = 0?

A3, 3, 4 B–2, 3, 4 C2, –3, 4 D2, 2, 4

Show answer

EnglishOAVS TGT 2017

Q137.Roots of the equation x2 – 9x + 6 = 0 are:

A3, 2 B6 69 2 ± C9 57 2 ± D9, 2

Show answer

EnglishOAVS TGT 2017

Q138.According to Cauchy-Schwarz, if x2 + y2 + z2 = 1, then what is the maximum value of x + 2y + 3z =0?

A25 B10 C14 D20

Show answer

EnglishOAVS TGT 2017

Q139.One real root of the equation x3 + x – 2 = 0 is

A1 B–2 C–1 D2

Show answer

EnglishOAVS TGT 2017

Q140.The values of x by solving the trinomial 2x2 +9x–5 are:

A–1/5, 2 B–1/2, 5 C1/5, 2 D1/2, –5

Show answer